Catherine Yu, DNP, FNP-BC
NPI 1669604112 · Family Nurse Practitioner · Portsmouth, NH
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Yu, DNP, FNP-BC is a Family Nurse Practitioner provider in Portsmouth, NH (NPI 1669604112).
Provider details
- NPI number
- 1669604112
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- RN241510 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-08-18
- Last updated
- 2018-07-17
Frequently asked questions
- What is Catherine Yu's NPI number?
- Catherine Yu's National Provider Identifier (NPI) is 1669604112, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Yu's specialty?
- Catherine Yu is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Catherine Yu located?
- Catherine Yu's practice location on file with NPPES is 170 Commerce Way Ste 103, Portsmouth, NH 03801.
- What is Catherine Yu's phone number?
- The practice phone number listed in the NPPES registry for Catherine Yu is (207) 343-1701.
- Does Catherine Yu accept Medicare?
- Catherine Yu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Yu's NPI active?
- Yes — Catherine Yu's NPI (1669604112) is active in the NPPES registry as of the last update on 2018-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.